diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/README.md b/lib/node_modules/@stdlib/blas/base/dtrsv/README.md
new file mode 100644
index 00000000000..acc57ba98ce
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/README.md
@@ -0,0 +1,259 @@
+
+
+# dtrsv
+
+> Solve one of the systems of equations `A*x = b` or `A^T*x = b`.
+
+
+
+## Usage
+
+```javascript
+var dtrsv = require( '@stdlib/blas/base/dtrsv' );
+```
+
+#### dtrsv( order, uplo, trans, diag, N, A, LDA, x, sx )
+
+Solves one of the systems of equations `A*x = b` or `A^T*x = b` where `b` and `x` are `N` element vectors and `A` is an `N` by `N` unit, or non-unit, upper or lower triangular matrix.
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+var A = new Float64Array( [ 1.0, 2.0, 3.0, 0.0, 1.0, 2.0, 0.0, 0.0, 1.0 ] );
+var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+
+dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 3, A, 3, x, 1 );
+// x => [ 0.0, -4.0, 3.0 ]
+```
+
+The function has the following parameters:
+
+- **order**: storage layout.
+- **uplo**: specifies whether `A` is an upper or lower triangular matrix.
+- **trans**: specifies whether `A` should be transposed, conjugate-transposed, or not transposed.
+- **diag**: specifies whether `A` has a unit diagonal.
+- **N**: number of elements along each dimension of `A`.
+- **A**: input matrix stored in linear memory as a [`Float64Array`][mdn-float64array].
+- **lda**: stride of the first dimension of `A` (a.k.a., leading dimension of the matrix `A`).
+- **x**: input vector [`Float64Array`][mdn-float64array].
+- **sx**: `x` stride length.
+
+The stride parameters determine how elements in the input arrays are accessed at runtime. For example, to iterate over the elements of `x` in reverse order,
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+var A = new Float64Array( [ 1.0, 2.0, 3.0, 0.0, 1.0, 2.0, 0.0, 0.0, 1.0 ] );
+var x = new Float64Array( [ 3.0, 2.0, 1.0 ] );
+
+dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 3, A, 3, x, -1 );
+// x => [ 3.0, -4.0, 0.0 ]
+```
+
+Note that indexing is relative to the first index. To introduce an offset, use [`typed array`][mdn-typed-array] views.
+
+
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+// Initial arrays...
+var x0 = new Float64Array( [ 1.0, 1.0, 1.0, 1.0 ] );
+var A = new Float64Array( [ 1.0, 2.0, 3.0, 0.0, 1.0, 2.0, 0.0, 0.0, 1.0 ] );
+
+// Create offset views...
+var x1 = new Float64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
+
+dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 3, A, 3, x1, 1 );
+// x0 => [ 1.0, 0.0, -1.0, 1.0 ]
+```
+
+#### dtrsv.ndarray( uplo, trans, diag, N, A, sa1, sa2, oa, x, sx, ox )
+
+Solves one of the systems of equations `A*x = b` or `A^T*x = b`, using alternative indexing semantics and where `b` and `x` are `N` element vectors and `A` is an `N` by `N` unit, or non-unit, upper or lower triangular matrix.
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+var A = new Float64Array( [ 1.0, 2.0, 3.0, 0.0, 1.0, 2.0, 0.0, 0.0, 1.0 ] );
+var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+
+dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 3, A, 3, 1, 0, x, 1, 0 );
+// x => [ 0.0, -4.0, 3.0 ]
+```
+
+The function has the following additional parameters:
+
+- **sa1**: stride of the first dimension of `A`.
+- **sa2**: stride of the second dimension of `A`.
+- **oa**: starting index for `A`.
+- **ox**: starting index for `x`.
+
+While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying buffer, the offset parameters support indexing semantics based on starting indices. For example,
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+var A = new Float64Array( [ 1.0, 2.0, 3.0, 0.0, 1.0, 2.0, 0.0, 0.0, 1.0 ] );
+var x = new Float64Array( [ 3.0, 2.0, 1.0 ] );
+
+dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 3, A, 3, 1, 0, x, -1, 2 );
+// x => [ 3.0, -4.0, 0.0 ]
+```
+
+
+
+
+
+
+
+## Notes
+
+- `dtrsv()` corresponds to the [BLAS][blas] level 2 function [`dtrsv`][blas-dtrsv].
+- Neither routine tests for singularity or near-singularity. Such tests must be performed before calling the routines.
+
+
+
+
+
+
+
+## Examples
+
+
+
+```javascript
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var dtrsv = require( '@stdlib/blas/base/dtrsv' );
+
+var opts = {
+ 'dtype': 'float64'
+};
+
+var N = 5;
+
+var A = discreteUniform( N*N, -10.0, 10.0, opts );
+var x = discreteUniform( N, -10.0, 10.0, opts );
+
+dtrsv( 'column-major', 'upper', 'no-transpose', 'unit', N, A, N, x, 1 );
+console.log( x );
+
+dtrsv.ndarray( 'upper', 'no-transpose', 'unit', N, A, 1, N, 0, x, 1, 0 );
+console.log( x );
+```
+
+
+
+
+
+
+
+* * *
+
+
+
+## C APIs
+
+
+
+
+
+
+
+
+
+
+
+### Usage
+
+```c
+TODO
+```
+
+#### TODO
+
+TODO.
+
+```c
+TODO
+```
+
+TODO
+
+```c
+TODO
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+### Examples
+
+```c
+TODO
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+[blas]: http://www.netlib.org/blas
+
+[blas-dtrsv]: https://www.netlib.org/lapack/explore-html/dd/dc3/group__trsv_ga7a7dcbb8745b4776ce13063ab031141f.html#ga7a7dcbb8745b4776ce13063ab031141f
+
+[mdn-float64array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Float64Array
+
+[mdn-typed-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray
+
+
+
+
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/base/dtrsv/benchmark/benchmark.js
new file mode 100644
index 00000000000..4c3cf8cbe0c
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/benchmark/benchmark.js
@@ -0,0 +1,105 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var zeros = require( '@stdlib/array/zeros' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var floor = require( '@stdlib/math/base/special/floor' );
+var pkg = require( './../package.json' ).name;
+var dtrsv = require( './../lib/dtrsv.js' );
+
+
+// VARIABLES //
+
+var options = {
+ 'dtype': 'float64'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} N - number of elements along each dimension
+* @returns {Function} benchmark function
+*/
+function createBenchmark( N ) {
+ var A = discreteUniform( N*N, -10.0, 10.0, options );
+ var x = zeros( N, options.dtype );
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var z;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ z = dtrsv( 'row-major', 'upper', 'transpose', 'non-unit', N, A, N, x, 1 );
+ if ( isnan( z[ i%z.length ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnan( z[ i%z.length ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var min;
+ var max;
+ var N;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ N = floor( pow( pow( 10, i ), 1.0/2.0 ) );
+ f = createBenchmark( N );
+ bench( pkg+':size='+(N*N), f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/blas/base/dtrsv/benchmark/benchmark.ndarray.js
new file mode 100644
index 00000000000..15be7512074
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/benchmark/benchmark.ndarray.js
@@ -0,0 +1,105 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var zeros = require( '@stdlib/array/zeros' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var floor = require( '@stdlib/math/base/special/floor' );
+var pkg = require( './../package.json' ).name;
+var dtrsv = require( './../lib/ndarray.js' );
+
+
+// VARIABLES //
+
+var options = {
+ 'dtype': 'float64'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} N - number of elements along each dimension
+* @returns {Function} benchmark function
+*/
+function createBenchmark( N ) {
+ var A = discreteUniform( N*N, -10.0, 10.0, options );
+ var x = zeros( N, options.dtype );
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var z;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ z = dtrsv( 'upper', 'transpose', 'non-unit', N, A, N, 1, 0, x, 1, 0 );
+ if ( isnan( z[ i%z.length ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnan( z[ i%z.length ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var min;
+ var max;
+ var N;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ N = floor( pow( pow( 10, i ), 1.0/2.0 ) );
+ f = createBenchmark( N );
+ bench( pkg+':ndarray:size='+(N*N), f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/docs/repl.txt b/lib/node_modules/@stdlib/blas/base/dtrsv/docs/repl.txt
new file mode 100644
index 00000000000..7358ba7b102
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/docs/repl.txt
@@ -0,0 +1,118 @@
+
+{{alias}}( ord, uplo, trans, diag, N, A, lda, x, sx )
+ Solves one of the systems of equations `A*x = b` or `A^T*x = b` where `b`
+ and `x` are `N` element vectors and `A` is an `N` by `N` unit, or non-unit,
+ upper or lower triangular matrix.
+
+ Indexing is relative to the first index. To introduce an offset, use typed
+ array views.
+
+ If `N` is equal to `0`, the function returns `x` unchanged.
+
+ Parameters
+ ----------
+ ord: string
+ Row-major (C-style) or column-major (Fortran-style) order. Must be
+ either 'row-major' or 'column-major'.
+
+ uplo: string
+ Specifies whether `A` is an upper or lower triangular matrix.
+
+ trans: string
+ Specifies whether `A` should be transposed, conjugate-transposed, or not
+ transposed.
+
+ diag: string
+ Specifies whether `A` has a unit diagonal.
+
+ N: integer
+ Number of elements along each dimension of `A`.
+
+ A: Float64Array
+ Input matrix.
+
+ lda: integer
+ Stride of the first dimension of `A` (a.k.a., leading dimension of the
+ matrix `A`).
+
+ x: Float64Array
+ Input vector.
+
+ sx: integer
+ Index increment for `x`.
+
+ Returns
+ -------
+ x: Float64Array
+ Input vector.
+
+ Examples
+ --------
+ > var x = new {{alias:@stdlib/array/float64}}( [ 1.0, 1.0 ] );
+ > var A = new {{alias:@stdlib/array/float64}}( [ 1.0, 2.0, 0.0, 1.0 ] );
+ > {{alias}}( 'row-major', 'upper', 'no-transpose', 'unit', 2, A, 2, x, 1 )
+ [ -1.0, 1.0 ]
+
+
+{{alias}}.ndarray( uplo, trans, diag, N, A, sa1, sa2, oa, x, sx, ox )
+ Solves one of the systems of equations `A*x = b` or `A^T*x = b`, using
+ alternative indexing semantics and where `b` and `x` are `N` element vectors
+ and `A` is an `N` by `N` unit, or non-unit, upper or lower triangular
+ matrix.
+
+ While typed array views mandate a view offset based on the underlying
+ buffer, the offset parameters support indexing semantics based on starting
+ indices.
+
+ Parameters
+ ----------
+ uplo: string
+ Specifies whether `A` is an upper or lower triangular matrix.
+
+ trans: string
+ Specifies whether `A` should be transposed, conjugate-transposed, or not
+ transposed.
+
+ diag: string
+ Specifies whether `A` has a unit diagonal.
+
+ N: integer
+ Number of elements along each dimension of `A`.
+
+ A: Float64Array
+ Input matrix.
+
+ sa1: integer
+ Stride of the first dimension of `A`.
+
+ sa2: integer
+ Stride of the second dimension of `A`.
+
+ oa: integer
+ Starting index for `A`.
+
+ x: Float64Array
+ Input vector.
+
+ sx: integer
+ Index increment for `x`.
+
+ ox: integer
+ Starting index for `x`.
+
+ Returns
+ -------
+ x: Float64Array
+ Input vector.
+
+ Examples
+ --------
+ > var x = new {{alias:@stdlib/array/float64}}( [ 1.0, 1.0 ] );
+ > var A = new {{alias:@stdlib/array/float64}}( [ 1.0, 2.0, 0.0, 1.0 ] );
+ > var uplo = 'upper';
+ > var trans = 'no-transpose';
+ > {{alias}}.ndarray( uplo, trans, 'unit', 2, A, 2, 1, 0, x, 1, 0 )
+ [ -1.0, 1.0 ]
+
+ See Also
+ --------
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/base/dtrsv/docs/types/index.d.ts
new file mode 100644
index 00000000000..fb26d177f58
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/docs/types/index.d.ts
@@ -0,0 +1,119 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+///
+
+import { Layout, MatrixTriangle, TransposeOperation, DiagonalType } from '@stdlib/types/blas';
+
+/**
+* Interface describing `dtrsv`.
+*/
+interface Routine {
+ /**
+ * Solves one of the systems of equations `A*x = b` or `A^T*x = b` where `b` and `x` are `N` element vectors and `A` is an `N` by `N` unit, or non-unit, upper or lower triangular matrix.
+ *
+ * @param order - storage layout
+ * @param uplo - specifies whether `A` is an upper or lower triangular matrix
+ * @param trans - specifies whether `A` should be transposed, conjugate-transposed, or not transposed
+ * @param diag - specifies whether `A` has a unit diagonal
+ * @param N - number of elements along each dimension in the matrix `A`
+ * @param A - input matrix
+ * @param LDA - stride of the first dimension of `A` (a.k.a., leading dimension of the matrix `A`)
+ * @param x - input vector
+ * @param strideX - `x` stride length
+ * @returns `x`
+ *
+ * @example
+ * var Float64Array = require( '@stdlib/array/float64' );
+ *
+ * var A = new Float64Array( [ 1.0, 2.0, 3.0, 0.0, 1.0, 2.0, 0.0, 0.0, 1.0 ] ); // => [ [ 1.0, 2.0, 3.0 ], [ 0.0, 1.0, 2.0 ], [ 0.0, 0.0, 1.0 ] ]
+ * var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ *
+ * dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 3, A, 3, x, 1 );
+ * // x => [ 0.0, -4.0, 3.0 ]
+ */
+ ( order: Layout, uplo: MatrixTriangle, trans: TransposeOperation, diag: DiagonalType, N: number, A: Float64Array, LDA: number, x: Float64Array, strideX: number ): Float64Array;
+
+ /**
+ * Solves one of the systems of equations `A*x = b` or `A^T*x = b`, using alternative indexing semantics and where `b` and `x` are `N` element vectors and `A` is an `N` by `N` unit, or non-unit, upper or lower triangular matrix.
+ *
+ * @param uplo - specifies whether `A` is an upper or lower triangular matrix
+ * @param trans - specifies whether `A` should be transposed, conjugate-transposed, or not transposed
+ * @param diag - specifies whether `A` has a unit diagonal
+ * @param N - number of elements along each dimension in the matrix `A`
+ * @param A - input matrix
+ * @param strideA1 - stride of the first dimension of `A`
+ * @param strideA2 - stride of the first dimension of `A`
+ * @param offsetA - starting index for `A`
+ * @param x - input vector
+ * @param strideX - `x` stride length
+ * @param offsetX - starting index for `x`
+ * @returns `x`
+ *
+ * @example
+ * var Float64Array = require( '@stdlib/array/float64' );
+ *
+ * var A = new Float64Array( [ 1.0, 2.0, 3.0, 0.0, 1.0, 2.0, 0.0, 0.0, 1.0 ] ); // => [ [ 1.0, 2.0, 3.0 ], [ 0.0, 1.0, 2.0 ], [ 0.0, 0.0, 1.0 ] ]
+ * var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+ *
+ * dtrsv.ndarray( 'row-major', 'upper', 'no-transpose', 'unit', 3, A, 3, 1, 0, x, 1, 0 );
+ * // x => [ 0.0, -4.0, 3.0 ]
+ */
+ ndarray( uplo: MatrixTriangle, trans: TransposeOperation, diag: DiagonalType, N: number, A: Float64Array, strideA1: number, strideA2: number, offsetA: number, x: Float64Array, strideX: number, offsetX: number ): Float64Array;
+}
+
+/**
+* Solves one of the systems of equations `A*x = b` or `A^T*x = b` where `b` and `x` are `N` element vectors and `A` is an `N` by `N` unit, or non-unit, upper or lower triangular matrix.
+*
+* @param order - storage layout
+* @param uplo - specifies whether `A` is an upper or lower triangular matrix
+* @param trans - specifies whether `A` should be transposed, conjugate-transposed, or not transposed
+* @param diag - specifies whether `A` has a unit diagonal
+* @param N - number of elements along each dimension in the matrix `A`
+* @param A - input matrix
+* @param LDA - stride of the first dimension of `A` (a.k.a., leading dimension of the matrix `A`)
+* @param x - input vector
+* @param strideX - `x` stride length
+* @returns `x`
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var A = new Float64Array( [ 1.0, 0.0, 0.0, 2.0, 3.0, 0.0, 4.0, 5.0, 6.0 ] );
+* var x = new Float64Array( [ 1.0, 1.0, 1.0 ] );
+*
+* dtrsv( 'row-major', 'lower', 'no-transpose', 'non-unit', 3, A, 3, x, 1 );
+* // x => [ 1.0, ~-0.33, ~-0.22 ]
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var A = new Float64Array( [ 1.0, 0.0, 0.0, 2.0, 3.0, 0.0, 4.0, 5.0, 6.0 ] );
+* var x = new Float64Array( [ 1.0, 1.0, 1.0 ] );
+*
+* dtrsv.ndarray( 'lower', 'no-transpose', 'non-unit', 3, A, 3, 1, 0, x, 1, 0 );
+* // x => [ 1.0, ~-0.33, ~-0.22 ]
+*/
+declare var dtrsv: Routine;
+
+
+// EXPORTS //
+
+export = dtrsv;
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/docs/types/test.ts b/lib/node_modules/@stdlib/blas/base/dtrsv/docs/types/test.ts
new file mode 100644
index 00000000000..dc628c4cda5
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/docs/types/test.ts
@@ -0,0 +1,374 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import dtrsv = require( './index' );
+
+
+// TESTS //
+
+// The function returns a Float64Array...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, x, 1 ); // $ExpectType Float64Array
+}
+
+// The compiler throws an error if the function is provided a first argument which is not a string...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv( 10, 'upper', 'no-transpose', 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( true, 'upper', 'no-transpose', 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( false, 'upper', 'no-transpose', 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( null, 'upper', 'no-transpose', 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( undefined, 'upper', 'no-transpose', 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( [], 'upper', 'no-transpose', 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( {}, 'upper', 'no-transpose', 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( ( x: number ): number => x, 'upper', 'no-transpose', 'unit', 10, A, 10, x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a second argument which is not a string...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv( 'row-major', 10, 'no-transpose', 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', true, 'no-transpose', 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', false, 'no-transpose', 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', null, 'no-transpose', 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', undefined, 'no-transpose', 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', [], 'no-transpose', 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', {}, 'no-transpose', 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', ( x: number ): number => x, 'no-transpose', 'unit', 10, A, 10, x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a third argument which is not a string...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv( 'row-major', 'upper', 10, 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', true, 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', false, 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', null, 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', undefined, 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', [], 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', {}, 'unit', 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', ( x: number ): number => x, 'unit', 10, A, 10, x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fourth argument which is not a string...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv( 'row-major', 'upper', 'no-transpose', 10, 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', true, 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', false, 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', null, 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', undefined, 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', [], 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', {}, 10, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', ( x: number ): number => x, 10, A, 10, x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fifth argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', '10', A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', true, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', false, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', null, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', undefined, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', [], A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', {}, A, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', ( x: number ): number => x, A, 10, x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a sixth argument which is not a Float64Array...
+{
+ const x = new Float64Array( 10 );
+
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, 10, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, '10', 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, true, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, false, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, null, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, undefined, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, [ '1' ], 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, {}, 10, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, ( x: number ): number => x, 10, x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a seventh argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, '10', x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, true, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, false, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, null, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, undefined, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, [], x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, {}, x, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, ( x: number ): number => x, x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an eighth argument which is not a Float64Array...
+{
+ const A = new Float64Array( 20 );
+
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, 10, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, '10', 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, true, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, false, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, null, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, undefined, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, [ '1' ], 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, {}, 1 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, ( x: number ): number => x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a ninth argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, x, '10' ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, x, true ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, x, false ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, x, null ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, x, undefined ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, x, [] ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, x, {} ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, x, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv(); // $ExpectError
+ dtrsv( 'row-major' ); // $ExpectError
+ dtrsv( 'row-major', 'upper' ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose' ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit' ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10 ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, x ); // $ExpectError
+ dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 10, A, 10, x, 1, 1 ); // $ExpectError
+}
+
+// Attached to main export is an `ndarray` method which returns a Float64Array...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectType Float64Array
+}
+
+// The compiler throws an error if the function is provided a first argument which is not a string...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv.ndarray( 10, 'no-transpose', 'unit', 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( true, 'no-transpose', 'unit', 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( false, 'no-transpose', 'unit', 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( null, 'no-transpose', 'unit', 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( undefined, 'no-transpose', 'unit', 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( [], 'no-transpose', 'unit', 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( {}, 'no-transpose', 'unit', 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( ( x: number ): number => x, 'no-transpose', 'unit', 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a second argument which is not a string...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv.ndarray( 'upper', 10, 'unit', 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', true, 'unit', 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', false, 'unit', 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', null, 'unit', 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', undefined, 'unit', 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', [], 'unit', 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', {}, 'unit', 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', ( x: number ): number => x, 'unit', 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a third argument which is not a string...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv.ndarray( 'upper', 'no-transpose', 10, 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', true, 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', false, 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', null, 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', undefined, 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', [], 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', {}, 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', ( x: number ): number => x, 10, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fourth argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', '10', A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', true, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', false, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', null, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', undefined, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', [], A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', {}, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', ( x: number ): number => x, A, 10, 1, 0, x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fifth argument which is not a Float64Array...
+{
+ const x = new Float64Array( 10 );
+
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, 10, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, '10', 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, true, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, false, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, null, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, undefined, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, [ '1' ], 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, {}, 10, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, ( x: number ): number => x, 10, 1, 0, x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a sixth argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, '10', 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, true, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, false, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, null, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, undefined, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, [], 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, {}, 1, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, ( x: number ): number => x, 1, 0, x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a seventh argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, '10', 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, true, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, false, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, null, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, undefined, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, [], 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, {}, 0, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, ( x: number ): number => x, 0, x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an eighth argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, '10', x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, true, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, false, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, null, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, undefined, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, [], x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, {}, x, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, ( x: number ): number => x, x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a ninth argument which is not a Float64Array...
+{
+ const A = new Float64Array( 20 );
+
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, 10, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, '10', 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, true, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, false, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, null, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, undefined, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, [ '1' ], 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, {}, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, ( x: number ): number => x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a tenth argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x, '10', 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x, true, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x, false, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x, null, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x, undefined, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x, [], 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x, {}, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x, ( x: number ): number => x, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an eleventh argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x, 1, '10' ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x, 1, true ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x, 1, false ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x, 1, null ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x, 1, undefined ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x, 1, [] ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x, 1, {} ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x, 1, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+ const x = new Float64Array( 10 );
+ const A = new Float64Array( 20 );
+
+ dtrsv.ndarray(); // $ExpectError
+ dtrsv.ndarray( 'upper' ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose' ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit' ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x, 1 ); // $ExpectError
+ dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 10, A, 10, 1, 0, x, 1, 0, 10 ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/examples/index.js b/lib/node_modules/@stdlib/blas/base/dtrsv/examples/index.js
new file mode 100644
index 00000000000..c139af3b69b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/examples/index.js
@@ -0,0 +1,37 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var dtrsv = require( './../lib' );
+
+var opts = {
+ 'dtype': 'float64'
+};
+
+var N = 5;
+
+var A = discreteUniform( N*N, -10.0, 10.0, opts );
+var x = discreteUniform( N, -10.0, 10.0, opts );
+
+dtrsv( 'column-major', 'upper', 'no-transpose', 'unit', N, A, N, x, 1 );
+console.log( x );
+
+dtrsv.ndarray( 'upper', 'no-transpose', 'unit', N, A, 1, N, 0, x, 1, 0 );
+console.log( x );
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/lib/base.js b/lib/node_modules/@stdlib/blas/base/dtrsv/lib/base.js
new file mode 100644
index 00000000000..8f6322ef985
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/lib/base.js
@@ -0,0 +1,171 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var isRowMajor = require( '@stdlib/ndarray/base/assert/is-row-major' );
+
+
+// MAIN //
+
+/**
+* Solves one of the systems of equations `A*x = b` or `A^T*x = b` where `b` and `x` are `N` element vectors and `A` is an `N` by `N` unit, or non-unit, upper or lower triangular matrix.
+*
+* @private
+* @param {string} uplo - specifies whether `A` is an upper or lower triangular matrix
+* @param {string} trans - specifies whether `A` should be transposed, conjugate-transposed, or not transposed
+* @param {string} diag - specifies whether `A` has a unit diagonal
+* @param {NonNegativeInteger} N - number of elements along each dimension of `A`
+* @param {Float64Array} A - input matrix
+* @param {integer} strideA1 - stride of the first dimension of `A`
+* @param {integer} strideA2 - stride of the second dimension of `A`
+* @param {NonNegativeInteger} offsetA - starting index for `A`
+* @param {Float64Array} x - input vector
+* @param {integer} strideX - `x` stride length
+* @param {NonNegativeInteger} offsetX - starting index for `x`
+* @returns {Float64Array} `x`
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var A = new Float64Array( [ 1.0, 2.0, 3.0, 0.0, 1.0, 2.0, 0.0, 0.0, 1.0 ] );
+* var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+*
+* dtrsv( 'upper', 'no-transpose', 'unit', 3, A, 3, 1, 0, x, 1, 0 );
+* // x => [ 0.0, -4.0, 3.0 ]
+*/
+function dtrsv( uplo, trans, diag, N, A, strideA1, strideA2, offsetA, x, strideX, offsetX ) { // eslint-disable-line max-params, max-len
+ var nonunit;
+ var isrm;
+ var tmp;
+ var sa0;
+ var sa1;
+ var ix0;
+ var ix1;
+ var i0;
+ var i1;
+ var oa;
+ var ox;
+
+ // Note on variable naming convention: sa#, ix#, i# where # corresponds to the loop number, with `0` being the innermost loop...
+
+ isrm = isRowMajor( [ strideA1, strideA2 ] );
+ nonunit = ( diag === 'non-unit' );
+
+ if ( isrm ) {
+ // For row-major matrices, the last dimension has the fastest changing index...
+ sa0 = strideA2; // stride for innermost loop
+ sa1 = strideA1; // stride for outermost loop
+ } else { // isColMajor
+ // For column-major matrices, the first dimension has the fastest changing index...
+ sa0 = strideA1; // stride for innermost loop
+ sa1 = strideA2; // stride for outermost loop
+ }
+ ox = offsetX;
+
+ if (
+ ( !isrm && trans === 'no-transpose' && uplo === 'upper' ) ||
+ ( isrm && trans !== 'no-transpose' && uplo === 'lower' )
+ ) {
+ ix1 = ox + ( ( N - 1 ) * strideX );
+ for ( i1 = N-1; i1 >= 0; i1-- ) {
+ if ( x[ ix1 ] !== 0.0 ) {
+ oa = offsetA + (sa1*i1);
+ if ( nonunit ) {
+ x[ ix1 ] /= A[ oa+(sa0*i1) ];
+ }
+ tmp = x[ ix1 ];
+ ix0 = ix1;
+ for ( i0 = i1-1; i0 >= 0; i0-- ) {
+ ix0 -= strideX;
+ x[ ix0 ] -= tmp * A[ oa+(sa0*i0) ];
+ }
+ }
+ ix1 -= strideX;
+ }
+ return x;
+ }
+ if (
+ ( !isrm && trans === 'no-transpose' && uplo === 'lower' ) ||
+ ( isrm && trans !== 'no-transpose' && uplo === 'upper' )
+ ) {
+ ix1 = ox;
+ for ( i1 = 0; i1 < N; i1++ ) {
+ if ( x[ ix1 ] !== 0.0 ) {
+ oa = offsetA + (sa1*i1);
+ if ( nonunit ) {
+ x[ ix1 ] /= A[ oa+(sa0*i1) ];
+ }
+ tmp = x[ ix1 ];
+ ix0 = ix1;
+ for ( i0 = i1+1; i0 < N; i0++ ) {
+ ix0 += strideX;
+ x[ ix0 ] -= tmp * A[ oa+(sa0*i0) ];
+ }
+ }
+ ix1 += strideX;
+ }
+ return x;
+ }
+ if (
+ ( !isrm && trans !== 'no-transpose' && uplo === 'upper' ) ||
+ ( isrm && trans === 'no-transpose' && uplo === 'lower' )
+ ) {
+ ix1 = ox;
+ for ( i1 = 0; i1 < N; i1++ ) {
+ tmp = x[ ix1 ];
+ oa = offsetA + (sa1*i1);
+ ix0 = ox;
+ for ( i0 = 0; i0 <= i1-1; i0++ ) {
+ tmp -= x[ ix0 ] * A[ oa+(sa0*i0) ];
+ ix0 += strideX;
+ }
+ if ( nonunit ) {
+ tmp /= A[ oa+(sa0*i1) ];
+ }
+ x[ ix1 ] = tmp;
+ ix1 += strideX;
+ }
+ return x;
+ }
+ // ( !isrm && trans !== 'no-transpose' && uplo === 'lower' ) || ( isrm && trans === 'no-transpose' && uplo === 'upper' )
+ ox += ( N - 1 ) * strideX;
+ ix1 = ox;
+ for ( i1 = N-1; i1 >= 0; i1-- ) {
+ tmp = x[ ix1 ];
+ oa = offsetA + (sa1*i1);
+ ix0 = ox;
+ for ( i0 = N-1; i0 > i1; i0-- ) {
+ tmp -= x[ ix0 ] * A[ oa+(sa0*i0) ];
+ ix0 -= strideX;
+ }
+ if ( nonunit ) {
+ tmp /= A[ oa+(sa0*i1) ];
+ }
+ x[ ix1 ] = tmp;
+ ix1 -= strideX;
+ }
+ return x;
+}
+
+
+// EXPORTS //
+
+module.exports = dtrsv;
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/lib/dtrsv.js b/lib/node_modules/@stdlib/blas/base/dtrsv/lib/dtrsv.js
new file mode 100644
index 00000000000..c7032f454e6
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/lib/dtrsv.js
@@ -0,0 +1,108 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var max = require( '@stdlib/math/base/special/fast/max' );
+var isLayout = require( '@stdlib/blas/base/assert/is-layout' );
+var isMatrixTriangle = require( '@stdlib/blas/base/assert/is-matrix-triangle' );
+var isTransposeOperation = require( '@stdlib/blas/base/assert/is-transpose-operation' );
+var isDiagonal = require( '@stdlib/blas/base/assert/is-diagonal-type' );
+var stride2offset = require( '@stdlib/strided/base/stride2offset' );
+var format = require( '@stdlib/string/format' );
+var base = require( './base.js' );
+
+
+// MAIN //
+
+/**
+* Solves one of the systems of equations `A*x = b` or `A^T*x = b` where `b` and `x` are `N` element vectors and `A` is an `N` by `N` unit, or non-unit, upper or lower triangular matrix.
+*
+* @param {string} order - storage layout
+* @param {string} uplo - specifies whether `A` is an upper or lower triangular matrix
+* @param {string} trans - specifies whether `A` should be transposed, conjugate-transposed, or not transposed
+* @param {string} diag - specifies whether `A` has a unit diagonal
+* @param {NonNegativeInteger} N - number of elements along each dimension of `A`
+* @param {Float64Array} A - input matrix
+* @param {integer} LDA - stride of the first dimension of `A` (a.k.a., leading dimension of the matrix `A`)
+* @param {Float64Array} x - input vector
+* @param {integer} strideX - `x` stride length
+* @throws {TypeError} first argument must be a valid order
+* @throws {TypeError} second argument must specify whether a lower or upper triangular matrix is supplied
+* @throws {TypeError} third argument must be a valid transpose operation
+* @throws {TypeError} fourth argument must be a valid diagonal type
+* @throws {RangeError} fifth argument must be a nonnegative integer
+* @throws {RangeError} seventh argument must be greater than or equal to max(1,N)
+* @throws {RangeError} ninth argument must be non-zero
+* @returns {Float64Array} `x`
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var A = new Float64Array( [ 1.0, 2.0, 3.0, 0.0, 1.0, 2.0, 0.0, 0.0, 1.0 ] ); // => [ [ 1.0, 2.0, 3.0 ], [ 0.0, 1.0, 2.0 ], [ 0.0, 0.0, 1.0 ] ]
+* var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+*
+* dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 3, A, 3, x, 1 );
+* // x => [ 0.0, -4.0, 3.0 ]
+*/
+function dtrsv( order, uplo, trans, diag, N, A, LDA, x, strideX ) {
+ var sa1;
+ var sa2;
+ var ox;
+
+ if ( !isLayout( order ) ) {
+ throw new TypeError( format( 'invalid argument. First argument must be a valid order. Value: `%s`.', order ) );
+ }
+ if ( !isMatrixTriangle( uplo ) ) {
+ throw new TypeError( format( 'invalid argument. Second argument must specify whether the lower or upper triangular matrix is supplied. Value: `%s`.', uplo ) );
+ }
+ if ( !isTransposeOperation( trans ) ) {
+ throw new TypeError( format( 'invalid argument. Third argument must be a valid transpose operation. Value: `%s`.', trans ) );
+ }
+ if ( !isDiagonal( diag ) ) {
+ throw new TypeError( format( 'invalid argument. Fourth argument must be a valid diagonal type. Value: `%s`.', diag ) );
+ }
+ if ( N < 0 ) {
+ throw new RangeError( format( 'invalid argument. Fifth argument must be a nonnegative integer. Value: `%d`.', N ) );
+ }
+ if ( LDA < max( 1, N ) ) {
+ throw new RangeError( format( 'invalid argument. Seventh argument must be greater than or equal to max(1,%d). Value: `%d`.', N, LDA ) );
+ }
+ if ( strideX === 0 ) {
+ throw new RangeError( format( 'invalid argument. Ninth argument must be non-zero. Value: `%d`.', strideX ) );
+ }
+ if ( N === 0 ) {
+ return x;
+ }
+ if ( order === 'column-major' ) {
+ sa1 = 1;
+ sa2 = LDA;
+ } else { // order === 'row-major'
+ sa1 = LDA;
+ sa2 = 1;
+ }
+ ox = stride2offset( N, strideX );
+ return base( uplo, trans, diag, N, A, sa1, sa2, 0, x, strideX, ox );
+}
+
+
+// EXPORTS //
+
+module.exports = dtrsv;
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/lib/index.js b/lib/node_modules/@stdlib/blas/base/dtrsv/lib/index.js
new file mode 100644
index 00000000000..00d1192ecba
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/lib/index.js
@@ -0,0 +1,70 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* BLAS level 2 routine to solve one of the systems of equations `A*x = b` or `A^T*x = b` where `b` and `x` are `N` element vectors and `A` is an `N` by `N` unit, or non-unit, upper or lower triangular matrix.
+*
+* @module @stdlib/blas/base/dtrsv
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+* var dtrsv = require( '@stdlib/blas/base/dtrsv' );
+*
+* var A = new Float64Array( [ 1.0, 2.0, 3.0, 0.0, 1.0, 2.0, 0.0, 0.0, 1.0 ] );
+* var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+*
+* dtrsv( 'row-major', 'upper', 'no-transpose', 'unit', 3, A, 3, x, 1 );
+* // x => [ 0.0, -4.0, 3.0 ]
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+* var dtrsv = require( '@stdlib/blas/base/dtrsv' );
+*
+* var A = new Float64Array( [ 1.0, 2.0, 3.0, 0.0, 1.0, 2.0, 0.0, 0.0, 1.0 ] );
+* var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+*
+* dtrsv.ndarray( 'upper', 'no-transpose', 'unit', 3, A, 3, 1, 0, x, 1, 0 );
+* // x => [ 0.0, -4.0, 3.0 ]
+*/
+
+// MODULES //
+
+var join = require( 'path' ).join;
+var tryRequire = require( '@stdlib/utils/try-require' );
+var isError = require( '@stdlib/assert/is-error' );
+var main = require( './main.js' );
+
+
+// MAIN //
+
+var dtrsv;
+var tmp = tryRequire( join( __dirname, './native.js' ) );
+if ( isError( tmp ) ) {
+ dtrsv = main;
+} else {
+ dtrsv = tmp;
+}
+
+
+// EXPORTS //
+
+module.exports = dtrsv;
+
+// exports: { "ndarray": "dtrsv.ndarray" }
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/lib/main.js b/lib/node_modules/@stdlib/blas/base/dtrsv/lib/main.js
new file mode 100644
index 00000000000..4780f59cf56
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/lib/main.js
@@ -0,0 +1,35 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var dtrsv = require( './dtrsv.js' );
+var ndarray = require( './ndarray.js' );
+
+
+// MAIN //
+
+setReadOnly( dtrsv, 'ndarray', ndarray );
+
+
+// EXPORTS //
+
+module.exports = dtrsv;
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/lib/ndarray.js b/lib/node_modules/@stdlib/blas/base/dtrsv/lib/ndarray.js
new file mode 100644
index 00000000000..2b1632d1bcc
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/lib/ndarray.js
@@ -0,0 +1,87 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var isMatrixTriangle = require( '@stdlib/blas/base/assert/is-matrix-triangle' );
+var isTransposeOperation = require( '@stdlib/blas/base/assert/is-transpose-operation' );
+var isDiagonal = require( '@stdlib/blas/base/assert/is-diagonal-type' );
+var format = require( '@stdlib/string/format' );
+var base = require( './base.js' );
+
+
+// MAIN //
+
+/**
+* Solves one of the systems of equations `A*x = b` or `A^T*x = b` where `b` and `x` are `N` element vectors and `A` is an `N` by `N` unit, or non-unit, upper or lower triangular matrix.
+*
+* @param {string} uplo - specifies whether `A` is an upper or lower triangular matrix
+* @param {string} trans - specifies whether `A` should be transposed, conjugate-transposed, or not transposed
+* @param {string} diag - specifies whether `A` has a unit diagonal
+* @param {NonNegativeInteger} N - number of elements along each dimension of `A`
+* @param {Float64Array} A - input matrix
+* @param {integer} strideA1 - stride of the first dimension of `A`
+* @param {integer} strideA2 - stride of the second dimension of `A`
+* @param {NonNegativeInteger} offsetA - starting index for `A`
+* @param {Float64Array} x - input vector
+* @param {integer} strideX - `x` stride length
+* @param {NonNegativeInteger} offsetX - starting index for `x`
+* @throws {TypeError} first argument must specify whether a lower or upper triangular matrix is supplied
+* @throws {TypeError} second argument must be a valid transpose operation
+* @throws {TypeError} third argument must be a valid diagonal type
+* @throws {RangeError} fourth argument must be a nonnegative integer
+* @throws {RangeError} tenth argument must be non-zero
+* @returns {Float64Array} `x`
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var A = new Float64Array( [ 1.0, 2.0, 3.0, 0.0, 1.0, 2.0, 0.0, 0.0, 1.0 ] );
+* var x = new Float64Array( [ 1.0, 2.0, 3.0 ] );
+*
+* dtrsv( 'upper', 'no-transpose', 'unit', 3, A, 3, 1, 0, x, 1, 0 );
+* // x => [ 0.0, -4.0, 3.0 ]
+*/
+function dtrsv( uplo, trans, diag, N, A, strideA1, strideA2, offsetA, x, strideX, offsetX ) { // eslint-disable-line max-params, max-len
+ if ( !isMatrixTriangle( uplo ) ) {
+ throw new TypeError( format( 'invalid argument. First argument must specify whether the lower or upper triangular matrix is supplied. Value: `%s`.', uplo ) );
+ }
+ if ( !isTransposeOperation( trans ) ) {
+ throw new TypeError( format( 'invalid argument. Second argument must be a valid transpose operation. Value: `%s`.', trans ) );
+ }
+ if ( !isDiagonal( diag ) ) {
+ throw new TypeError( format( 'invalid argument. Third argument must be a valid diagonal type. Value: `%s`.', diag ) );
+ }
+ if ( N < 0 ) {
+ throw new RangeError( format( 'invalid argument. Fourth argument must be a nonnegative integer. Value: `%d`.', N ) );
+ }
+ if ( strideX === 0 ) {
+ throw new RangeError( format( 'invalid argument. Tenth argument must be non-zero. Value: `%d`.', strideX ) );
+ }
+ if ( N === 0 ) {
+ return x;
+ }
+ return base( uplo, trans, diag, N, A, strideA1, strideA2, offsetA, x, strideX, offsetX ); // eslint-disable-line max-len
+}
+
+
+// EXPORTS //
+
+module.exports = dtrsv;
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/package.json b/lib/node_modules/@stdlib/blas/base/dtrsv/package.json
new file mode 100644
index 00000000000..b3c34038220
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/package.json
@@ -0,0 +1,68 @@
+{
+ "name": "@stdlib/blas/base/dtrsv",
+ "version": "0.0.0",
+ "description": "Solve one of the systems of equations `A*x = b` or `A^T*x = b`.",
+ "license": "Apache-2.0",
+ "author": {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ },
+ "contributors": [
+ {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ }
+ ],
+ "main": "./lib",
+ "directories": {
+ "benchmark": "./benchmark",
+ "doc": "./docs",
+ "example": "./examples",
+ "lib": "./lib",
+ "test": "./test"
+ },
+ "types": "./docs/types",
+ "scripts": {},
+ "homepage": "https://github.com/stdlib-js/stdlib",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/stdlib-js/stdlib.git"
+ },
+ "bugs": {
+ "url": "https://github.com/stdlib-js/stdlib/issues"
+ },
+ "dependencies": {},
+ "devDependencies": {},
+ "engines": {
+ "node": ">=0.10.0",
+ "npm": ">2.7.0"
+ },
+ "os": [
+ "aix",
+ "darwin",
+ "freebsd",
+ "linux",
+ "macos",
+ "openbsd",
+ "sunos",
+ "win32",
+ "windows"
+ ],
+ "keywords": [
+ "stdlib",
+ "stdmath",
+ "mathematics",
+ "math",
+ "blas",
+ "level 2",
+ "dtrsv",
+ "linear",
+ "algebra",
+ "subroutines",
+ "array",
+ "ndarray",
+ "float32",
+ "float",
+ "float32array"
+ ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_complex_access_pattern.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_complex_access_pattern.json
new file mode 100644
index 00000000000..ab90d2b850d
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_complex_access_pattern.json
@@ -0,0 +1,14 @@
+{
+ "trans": "no-transpose",
+ "diag": "non-unit",
+ "uplo": "lower",
+ "strideA1": -2,
+ "strideA2": -5,
+ "offsetA": 14,
+ "strideX": -1,
+ "offsetX": 2,
+ "N": 3,
+ "A": [ 6, 999, 0, 999, 0, 5, 999, 4, 999, 0, 3, 999, 2, 999, 1 ],
+ "x": [ 3.0, 2.0, 1.0 ],
+ "x_out": [ 0.0, 0.0, 1.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_l_nt_nu.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_l_nt_nu.json
new file mode 100644
index 00000000000..655317f063f
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_l_nt_nu.json
@@ -0,0 +1,16 @@
+{
+ "order": "column-major",
+ "trans": "no-transpose",
+ "diag": "non-unit",
+ "uplo": "lower",
+ "strideX": 1,
+ "offsetA": 0,
+ "offsetX": 0,
+ "LDA": 3,
+ "strideA1": 1,
+ "strideA2": 3,
+ "N": 3,
+ "A": [ 1.0, 2.0, 3.0, 0.0, 4.0, 5.0, 0.0, 0.0, 6.0 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ 1.0, 0.0, 0.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_l_nt_u.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_l_nt_u.json
new file mode 100644
index 00000000000..77222a17269
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_l_nt_u.json
@@ -0,0 +1,16 @@
+{
+ "order": "column-major",
+ "trans": "no-transpose",
+ "diag": "unit",
+ "uplo": "lower",
+ "strideX": 1,
+ "offsetA": 0,
+ "offsetX": 0,
+ "LDA": 3,
+ "strideA1": 1,
+ "strideA2": 3,
+ "N": 3,
+ "A": [ 1.0, 2.0, 2.0, 0.0, 1.0, 1.0, 0.0, 0.0, 1.0 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ 1.0, 0.0, 1.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_l_t_nu.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_l_t_nu.json
new file mode 100644
index 00000000000..c25cbe24e9e
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_l_t_nu.json
@@ -0,0 +1,16 @@
+{
+ "order": "column-major",
+ "trans": "transpose",
+ "diag": "non-unit",
+ "uplo": "lower",
+ "strideX": 1,
+ "offsetA": 0,
+ "offsetX": 0,
+ "LDA": 3,
+ "strideA1": 1,
+ "strideA2": 3,
+ "N": 3,
+ "A": [ 1.0, 2.0, 3.0, 0.0, 4.0, 5.0, 0.0, 0.0, 6.0 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ -0.25, -0.125, 0.5 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_l_t_u.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_l_t_u.json
new file mode 100644
index 00000000000..a9d7c1bf83c
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_l_t_u.json
@@ -0,0 +1,16 @@
+{
+ "order": "column-major",
+ "trans": "transpose",
+ "diag": "unit",
+ "uplo": "lower",
+ "strideX": 1,
+ "offsetA": 0,
+ "offsetX": 0,
+ "LDA": 3,
+ "strideA1": 1,
+ "strideA2": 3,
+ "N": 3,
+ "A": [ 1.0, 2.0, 3.0, 0.0, 1.0, 2.0, 0.0, 0.0, 1.0 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ 0.0, -4.0, 3.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_oa.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_oa.json
new file mode 100644
index 00000000000..874b3d0ee0b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_oa.json
@@ -0,0 +1,14 @@
+{
+ "trans": "no-transpose",
+ "diag": "non-unit",
+ "uplo": "lower",
+ "strideA1": 2,
+ "strideA2": 6,
+ "offsetA": 7,
+ "strideX": 1,
+ "offsetX": 0,
+ "N": 3,
+ "A": [ 999, 999, 999, 999, 999, 999, 999, 1, 999, 2, 999, 3, 999, 0, 999, 4, 999, 5, 999, 0, 999, 0, 999, 6, 999, 999, 999, 999, 999, 999 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ 1.0, 0.0, 0.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_sa1_sa2.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_sa1_sa2.json
new file mode 100644
index 00000000000..a9c7b31911a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_sa1_sa2.json
@@ -0,0 +1,14 @@
+{
+ "trans": "no-transpose",
+ "diag": "non-unit",
+ "uplo": "lower",
+ "strideA1": 2,
+ "strideA2": 5,
+ "offsetA": 0,
+ "strideX": 1,
+ "offsetX": 0,
+ "N": 3,
+ "A": [ 1, 999, 2, 999, 3, 0, 999, 4, 999, 5, 0, 999, 0, 999, 6 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ 1.0, 0.0, 0.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_sa1_sa2n.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_sa1_sa2n.json
new file mode 100644
index 00000000000..648fc34061b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_sa1_sa2n.json
@@ -0,0 +1,14 @@
+{
+ "trans": "no-transpose",
+ "diag": "non-unit",
+ "uplo": "lower",
+ "strideA1": 2,
+ "strideA2": -5,
+ "offsetA": 10,
+ "strideX": 1,
+ "offsetX": 0,
+ "N": 3,
+ "A": [ 0, 999, 0, 999, 6, 0, 999, 4, 999, 5, 1, 999, 2, 999, 3 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ 1.0, 0.0, 0.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_sa1n_sa2.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_sa1n_sa2.json
new file mode 100644
index 00000000000..8eb3d5f5378
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_sa1n_sa2.json
@@ -0,0 +1,14 @@
+{
+ "trans": "no-transpose",
+ "diag": "non-unit",
+ "uplo": "lower",
+ "strideA1": -2,
+ "strideA2": 5,
+ "offsetA": 4,
+ "strideX": 1,
+ "offsetX": 0,
+ "N": 3,
+ "A": [ 3, 999, 2, 999, 1, 5, 999, 4, 999, 0, 6, 999, 0, 999, 0 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ 1.0, 0.0, 0.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_sa1n_sa2n.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_sa1n_sa2n.json
new file mode 100644
index 00000000000..b1107bb7379
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_sa1n_sa2n.json
@@ -0,0 +1,14 @@
+{
+ "trans": "no-transpose",
+ "diag": "non-unit",
+ "uplo": "lower",
+ "strideA1": -2,
+ "strideA2": -5,
+ "offsetA": 14,
+ "strideX": 1,
+ "offsetX": 0,
+ "N": 3,
+ "A": [ 6, 999, 0, 999, 0, 5, 999, 4, 999, 0, 3, 999, 2, 999, 1 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ 1.0, 0.0, 0.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_u_nt_nu.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_u_nt_nu.json
new file mode 100644
index 00000000000..46c0cd13c13
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_u_nt_nu.json
@@ -0,0 +1,16 @@
+{
+ "order": "column-major",
+ "trans": "no-transpose",
+ "diag": "non-unit",
+ "uplo": "upper",
+ "strideX": 1,
+ "offsetA": 0,
+ "offsetX": 0,
+ "LDA": 3,
+ "strideA1": 1,
+ "strideA2": 3,
+ "N": 3,
+ "A": [ 1.0, 0.0, 0.0, 2.0, 4.0, 0.0, 3.0, 5.0, 6.0 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ -0.25, -0.125, 0.5 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_u_nt_u.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_u_nt_u.json
new file mode 100644
index 00000000000..1ada8406173
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_u_nt_u.json
@@ -0,0 +1,16 @@
+{
+ "order": "column-major",
+ "trans": "no-transpose",
+ "diag": "unit",
+ "uplo": "upper",
+ "strideX": 1,
+ "offsetA": 0,
+ "offsetX": 0,
+ "LDA": 3,
+ "strideA1": 1,
+ "strideA2": 3,
+ "N": 3,
+ "A": [ 1.0, 0.0, 0.0, 2.0, 1.0, 0.0, 3.0, 2.0, 1.0 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ 0.0, -4.0, 3.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_u_t_nu.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_u_t_nu.json
new file mode 100644
index 00000000000..a814a94ffb9
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_u_t_nu.json
@@ -0,0 +1,16 @@
+{
+ "order": "column-major",
+ "trans": "transpose",
+ "diag": "non-unit",
+ "uplo": "upper",
+ "strideX": 1,
+ "offsetA": 0,
+ "offsetX": 0,
+ "LDA": 3,
+ "strideA1": 1,
+ "strideA2": 3,
+ "N": 3,
+ "A": [ 1.0, 0.0, 0.0, 2.0, 4.0, 0.0, 3.0, 5.0, 6.0 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ 1.0, 0.0, 0.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_u_t_u.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_u_t_u.json
new file mode 100644
index 00000000000..5e316b92440
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_u_t_u.json
@@ -0,0 +1,16 @@
+{
+ "order": "column-major",
+ "trans": "transpose",
+ "diag": "unit",
+ "uplo": "upper",
+ "strideX": 1,
+ "offsetA": 0,
+ "offsetX": 0,
+ "LDA": 3,
+ "strideA1": 1,
+ "strideA2": 3,
+ "N": 3,
+ "A": [ 1.0, 0.0, 0.0, 2.0, 1.0, 0.0, 3.0, 2.0, 1.0 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ 1.0, 0.0, 0.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_xn.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_xn.json
new file mode 100644
index 00000000000..69f94e23d9b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_xn.json
@@ -0,0 +1,16 @@
+{
+ "order": "column-major",
+ "trans": "transpose",
+ "diag": "unit",
+ "uplo": "upper",
+ "strideX": -1,
+ "offsetA": 0,
+ "offsetX": 2,
+ "LDA": 3,
+ "strideA1": 1,
+ "strideA2": 3,
+ "N": 3,
+ "A": [ 1.0, 0.0, 0.0, 2.0, 1.0, 0.0, 3.0, 2.0, 1.0 ],
+ "x": [ 3.0, 2.0, 1.0 ],
+ "x_out": [ 0.0, 0.0, 1.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_xt.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_xt.json
new file mode 100644
index 00000000000..96d5e5be571
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/column_major_xt.json
@@ -0,0 +1,16 @@
+{
+ "order": "column-major",
+ "trans": "transpose",
+ "diag": "unit",
+ "uplo": "upper",
+ "strideX": 2,
+ "offsetA": 0,
+ "offsetX": 0,
+ "LDA": 3,
+ "strideA1": 1,
+ "strideA2": 3,
+ "N": 3,
+ "A": [ 1.0, 0.0, 0.0, 2.0, 1.0, 0.0, 3.0, 2.0, 1.0 ],
+ "x": [ 1.0, 0.0, 2.0, 0.0, 3.0, 0.0 ],
+ "x_out": [ 1.0, 0.0, 0.0, 0.0, 0.0, 0.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_complex_access_pattern.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_complex_access_pattern.json
new file mode 100644
index 00000000000..4398f6118fb
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_complex_access_pattern.json
@@ -0,0 +1,14 @@
+{
+ "trans": "no-transpose",
+ "diag": "non-unit",
+ "uplo": "lower",
+ "strideA1": -6,
+ "strideA2": -1,
+ "offsetA": 14,
+ "strideX": -1,
+ "offsetX": 2,
+ "N": 3,
+ "A": [ 6, 5, 3, 999, 999, 999, 0, 4, 2, 999, 999, 999, 0, 0, 1 ],
+ "x": [ 3.0, 2.0, 1.0 ],
+ "x_out": [ 0.0, 0.0, 1.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_l_nt_nu.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_l_nt_nu.json
new file mode 100644
index 00000000000..f173b70235d
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_l_nt_nu.json
@@ -0,0 +1,16 @@
+{
+ "order": "row-major",
+ "trans": "no-transpose",
+ "diag": "non-unit",
+ "uplo": "lower",
+ "strideX": 1,
+ "offsetA": 0,
+ "offsetX": 0,
+ "LDA": 3,
+ "strideA1": 3,
+ "strideA2": 1,
+ "N": 3,
+ "A": [ 1.0, 0.0, 0.0, 2.0, 3.0, 0.0, 4.0, 5.0, 6.0 ],
+ "x": [ 0.0, 0.0, 0.0 ],
+ "x_out": [ 0.0, 0.0, 0.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_l_nt_u.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_l_nt_u.json
new file mode 100644
index 00000000000..532b1e7a581
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_l_nt_u.json
@@ -0,0 +1,16 @@
+{
+ "order": "row-major",
+ "trans": "no-transpose",
+ "diag": "unit",
+ "uplo": "lower",
+ "strideX": 1,
+ "offsetA": 0,
+ "offsetX": 0,
+ "LDA": 3,
+ "strideA1": 3,
+ "strideA2": 1,
+ "N": 3,
+ "A": [ 1.0, 0.0, 0.0, 2.0, 1.0, 0.0, 2.0, 1.0, 1.0 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ 1.0, 0.0, 1.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_l_t_nu.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_l_t_nu.json
new file mode 100644
index 00000000000..0abf8d76a5d
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_l_t_nu.json
@@ -0,0 +1,16 @@
+{
+ "order": "row-major",
+ "trans": "transpose",
+ "diag": "non-unit",
+ "uplo": "lower",
+ "strideX": 1,
+ "offsetA": 0,
+ "offsetX": 0,
+ "LDA": 3,
+ "strideA1": 3,
+ "strideA2": 1,
+ "N": 3,
+ "A": [ 1.0, 0.0, 0.0, 2.0, 3.0, 0.0, 4.0, 5.0, 6.0 ],
+ "x": [ 10.0, 10.0, 3.0 ],
+ "x_out": [ 3.0, 2.5, 0.5 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_l_t_u.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_l_t_u.json
new file mode 100644
index 00000000000..63f5ba53a83
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_l_t_u.json
@@ -0,0 +1,16 @@
+{
+ "order": "row-major",
+ "trans": "transpose",
+ "diag": "unit",
+ "uplo": "lower",
+ "strideX": 1,
+ "offsetA": 0,
+ "offsetX": 0,
+ "LDA": 3,
+ "strideA1": 3,
+ "strideA2": 1,
+ "N": 3,
+ "A": [ 1.0, 0.0, 0.0, 2.0, 1.0, 0.0, 3.0, 4.0, 1.0 ],
+ "x": [ 5.0, 5.0, 5.0 ],
+ "x_out": [ 20.0, -15.0, 5.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_oa.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_oa.json
new file mode 100644
index 00000000000..e101df12790
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_oa.json
@@ -0,0 +1,14 @@
+{
+ "trans": "no-transpose",
+ "diag": "non-unit",
+ "uplo": "lower",
+ "strideA1": 10,
+ "strideA2": 1,
+ "offsetA": 6,
+ "strideX": 1,
+ "offsetX": 0,
+ "N": 3,
+ "A": [ 999, 999, 999, 999, 999, 999, 1, 0, 0, 999, 999, 999, 999, 999, 999, 999, 2, 4, 0, 999, 999, 999, 999, 999, 999, 999, 3, 5, 6, 999 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ 1.0, 0.0, 0.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_sa1_sa2.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_sa1_sa2.json
new file mode 100644
index 00000000000..71dfb83ae60
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_sa1_sa2.json
@@ -0,0 +1,14 @@
+{
+ "trans": "no-transpose",
+ "diag": "non-unit",
+ "uplo": "lower",
+ "strideA1": 6,
+ "strideA2": 1,
+ "offsetA": 0,
+ "strideX": 1,
+ "offsetX": 0,
+ "N": 3,
+ "A": [ 1, 0, 0, 999, 999, 999, 2, 4, 0, 999, 999, 999, 3, 5, 6 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ 1.0, 0.0, 0.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_sa1_sa2n.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_sa1_sa2n.json
new file mode 100644
index 00000000000..50f356cd610
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_sa1_sa2n.json
@@ -0,0 +1,14 @@
+{
+ "trans": "no-transpose",
+ "diag": "non-unit",
+ "uplo": "lower",
+ "strideA1": 6,
+ "strideA2": -1,
+ "offsetA": 2,
+ "strideX": 1,
+ "offsetX": 0,
+ "N": 3,
+ "A": [ 0, 0, 1, 999, 999, 999, 0, 4, 2, 999, 999, 999, 6, 5, 3 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ 1.0, 0.0, 0.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_sa1n_sa2.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_sa1n_sa2.json
new file mode 100644
index 00000000000..ee625273cc3
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_sa1n_sa2.json
@@ -0,0 +1,14 @@
+{
+ "trans": "no-transpose",
+ "diag": "non-unit",
+ "uplo": "lower",
+ "strideA1": -6,
+ "strideA2": 1,
+ "offsetA": 12,
+ "strideX": 1,
+ "offsetX": 0,
+ "N": 3,
+ "A": [ 3, 5, 6, 999, 999, 999, 2, 4, 0, 999, 999, 999, 1, 0, 0 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ 1.0, 0.0, 0.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_sa1n_sa2n.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_sa1n_sa2n.json
new file mode 100644
index 00000000000..9f393c36350
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_sa1n_sa2n.json
@@ -0,0 +1,14 @@
+{
+ "trans": "no-transpose",
+ "diag": "non-unit",
+ "uplo": "lower",
+ "strideA1": -6,
+ "strideA2": -1,
+ "offsetA": 14,
+ "strideX": 1,
+ "offsetX": 0,
+ "N": 3,
+ "A": [ 6, 5, 3, 999, 999, 999, 0, 4, 2, 999, 999, 999, 0, 0, 1 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ 1.0, 0.0, 0.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_u_nt_nu.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_u_nt_nu.json
new file mode 100644
index 00000000000..68eba4076a9
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_u_nt_nu.json
@@ -0,0 +1,16 @@
+{
+ "order": "row-major",
+ "trans": "no-transpose",
+ "diag": "non-unit",
+ "uplo": "upper",
+ "strideX": 1,
+ "offsetA": 0,
+ "offsetX": 0,
+ "LDA": 3,
+ "strideA1": 3,
+ "strideA2": 1,
+ "N": 3,
+ "A": [ 1.0, 2.0, 3.0, 0.0, 4.0, 5.0, 0.0, 0.0, 6.0 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ -0.25, -0.125, 0.5 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_u_nt_u.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_u_nt_u.json
new file mode 100644
index 00000000000..63e7b56038d
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_u_nt_u.json
@@ -0,0 +1,16 @@
+{
+ "order": "row-major",
+ "trans": "no-transpose",
+ "diag": "unit",
+ "uplo": "upper",
+ "strideX": 1,
+ "offsetA": 0,
+ "offsetX": 0,
+ "LDA": 3,
+ "strideA1": 3,
+ "strideA2": 1,
+ "N": 3,
+ "A": [ 1.0, 2.0, 3.0, 0.0, 1.0, 2.0, 0.0, 0.0, 1.0 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ 0.0, -4.0, 3.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_u_t_nu.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_u_t_nu.json
new file mode 100644
index 00000000000..01da7cbee39
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_u_t_nu.json
@@ -0,0 +1,16 @@
+{
+ "order": "row-major",
+ "trans": "transpose",
+ "diag": "non-unit",
+ "uplo": "upper",
+ "strideX": 1,
+ "offsetA": 0,
+ "offsetX": 0,
+ "LDA": 3,
+ "strideA1": 3,
+ "strideA2": 1,
+ "N": 3,
+ "A": [ 1.0, 2.0, 3.0, 0.0, 4.0, 5.0, 0.0, 0.0, 6.0 ],
+ "x": [ 10.0, 10.0, 10.0 ],
+ "x_out": [ 10.0, -2.5, -1.25 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_u_t_u.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_u_t_u.json
new file mode 100644
index 00000000000..f6ec7c9fabc
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_u_t_u.json
@@ -0,0 +1,16 @@
+{
+ "order": "row-major",
+ "trans": "transpose",
+ "diag": "unit",
+ "uplo": "upper",
+ "strideX": 1,
+ "offsetA": 0,
+ "offsetX": 0,
+ "LDA": 3,
+ "strideA1": 3,
+ "strideA2": 1,
+ "N": 3,
+ "A": [ 1.0, 2.0, 3.0, 0.0, 1.0, 2.0, 0.0, 0.0, 1.0 ],
+ "x": [ 1.0, 1.0, 1.0 ],
+ "x_out": [ 1.0, -1.0, 0.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_xn.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_xn.json
new file mode 100644
index 00000000000..3aa96677aad
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_xn.json
@@ -0,0 +1,16 @@
+{
+ "order": "row-major",
+ "trans": "transpose",
+ "diag": "unit",
+ "uplo": "upper",
+ "strideX": -1,
+ "offsetA": 0,
+ "offsetX": 2,
+ "LDA": 3,
+ "strideA1": 3,
+ "strideA2": 1,
+ "N": 3,
+ "A": [ 1.0, 2.0, 3.0, 0.0, 1.0, 2.0, 0.0, 0.0, 1.0 ],
+ "x": [ 1.0, 2.0, 3.0 ],
+ "x_out": [ 0.0, -4.0, 3.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_xt.json b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_xt.json
new file mode 100644
index 00000000000..0e86a8177e6
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/fixtures/row_major_xt.json
@@ -0,0 +1,16 @@
+{
+ "order": "row-major",
+ "trans": "transpose",
+ "diag": "unit",
+ "uplo": "upper",
+ "strideX": 2,
+ "offsetA": 0,
+ "offsetX": 0,
+ "LDA": 3,
+ "strideA1": 3,
+ "strideA2": 1,
+ "N": 3,
+ "A": [ 1.0, 2.0, 3.0, 0.0, 1.0, 2.0, 0.0, 0.0, 1.0 ],
+ "x": [ 1.0, 0.0, 2.0, 0.0, 3.0, 0.0 ],
+ "x_out": [ 1.0, 0.0, 0.0, 0.0, 0.0, 0.0 ]
+}
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/test.dtrsv.js b/lib/node_modules/@stdlib/blas/base/dtrsv/test/test.dtrsv.js
new file mode 100644
index 00000000000..2ce9236c470
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/test.dtrsv.js
@@ -0,0 +1,756 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable max-len */
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Float64Array = require( '@stdlib/array/float64' );
+var EPS = require( '@stdlib/constants/float64/eps' );
+var abs = require( '@stdlib/math/base/special/abs' );
+var dtrsv = require( './../lib/dtrsv.js' );
+
+
+// FIXTURES //
+
+var rlntnu = require( './fixtures/row_major_l_nt_nu.json' );
+var rltnu = require( './fixtures/row_major_l_t_nu.json' );
+var rlntu = require( './fixtures/row_major_l_nt_u.json' );
+var rltu = require( './fixtures/row_major_l_t_u.json' );
+var runtnu = require( './fixtures/row_major_u_nt_nu.json' );
+var runtu = require( './fixtures/row_major_u_nt_u.json' );
+var rutnu = require( './fixtures/row_major_u_t_nu.json' );
+var rutu = require( './fixtures/row_major_u_t_u.json' );
+var rxt = require( './fixtures/row_major_xt.json' );
+var rxn = require( './fixtures/row_major_xn.json' );
+
+var clntnu = require( './fixtures/column_major_l_nt_nu.json' );
+var cltnu = require( './fixtures/column_major_l_t_nu.json' );
+var clntu = require( './fixtures/column_major_l_nt_u.json' );
+var cltu = require( './fixtures/column_major_l_t_u.json' );
+var cuntnu = require( './fixtures/column_major_u_nt_nu.json' );
+var cuntu = require( './fixtures/column_major_u_nt_u.json' );
+var cutnu = require( './fixtures/column_major_u_t_nu.json' );
+var cutu = require( './fixtures/column_major_u_t_u.json' );
+var cxt = require( './fixtures/column_major_xt.json' );
+var cxn = require( './fixtures/column_major_xn.json' );
+
+
+// FUNCTIONS //
+
+/**
+* Tests for element-wise approximate equality.
+*
+* @private
+* @param {Object} t - test object
+* @param {Collection} actual - actual values
+* @param {Collection} expected - expected values
+* @param {number} rtol - relative tolerance
+*/
+function isApprox( t, actual, expected, rtol ) {
+ var delta;
+ var tol;
+ var i;
+
+ t.strictEqual( actual.length, expected.length, 'returns expected value' );
+ for ( i = 0; i < expected.length; i++ ) {
+ if ( actual[ i ] === expected[ i ] ) {
+ t.strictEqual( actual[ i ], expected[ i ], 'returns expected value' );
+ } else {
+ delta = abs( actual[ i ] - expected[ i ] );
+ tol = rtol * EPS * abs( expected[ i ] );
+ t.ok( delta <= tol, 'within tolerance. actual: '+actual[ i ]+'. expected: '+expected[ i ]+'. delta: '+delta+'. tol: '+tol+'.' );
+ }
+ }
+}
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof dtrsv, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 9', function test( t ) {
+ t.strictEqual( dtrsv.length, 9, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function throws an error if provided an invalid first argument', function test( t ) {
+ var values;
+ var data;
+ var i;
+
+ data = rutu;
+
+ values = [
+ 'foo',
+ 'bar',
+ 'beep',
+ 'boop'
+ ];
+
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ dtrsv( value, data.uplo, data.trans, data.diag, data.N, new Float64Array( data.A ), data.LDA, new Float64Array( data.x ), data.strideX );
+ };
+ }
+});
+
+tape( 'the function throws an error if provided an invalid second argument', function test( t ) {
+ var values;
+ var data;
+ var i;
+
+ data = rutu;
+
+ values = [
+ 'foo',
+ 'bar',
+ 'beep',
+ 'boop'
+ ];
+
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ dtrsv( data.order, value, data.trans, data.diag, data.N, new Float64Array( data.A ), data.LDA, new Float64Array( data.x ), data.strideX );
+ };
+ }
+});
+
+tape( 'the function throws an error if provided an invalid third argument', function test( t ) {
+ var values;
+ var data;
+ var i;
+
+ data = rutu;
+
+ values = [
+ 'foo',
+ 'bar',
+ 'beep',
+ 'boop'
+ ];
+
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ dtrsv( data.order, data.uplo, value, data.diag, data.N, new Float64Array( data.A ), data.LDA, new Float64Array( data.x ), data.strideX );
+ };
+ }
+});
+
+tape( 'the function throws an error if provided an invalid fourth argument', function test( t ) {
+ var values;
+ var data;
+ var i;
+
+ data = rutu;
+
+ values = [
+ 'foo',
+ 'bar',
+ 'beep',
+ 'boop'
+ ];
+
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ dtrsv( data.order, data.uplo, data.trans, value, data.N, new Float64Array( data.A ), data.LDA, new Float64Array( data.x ), data.strideX );
+ };
+ }
+});
+
+tape( 'the function throws an error if provided an invalid fifth argument', function test( t ) {
+ var values;
+ var data;
+ var i;
+
+ data = rutu;
+
+ values = [
+ -1,
+ -2,
+ -3
+ ];
+
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[ i ] ), RangeError, 'throws an error when provided ' + values[ i ] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ dtrsv( data.order, data.uplo, data.trans, data.diag, value, new Float64Array( data.A ), data.LDA, new Float64Array( data.x ), data.strideX );
+ };
+ }
+});
+
+tape( 'the function throws an error if provided an invalid seventh argument', function test( t ) {
+ var values;
+ var data;
+ var i;
+
+ data = rutu;
+
+ values = [
+ 2,
+ 1,
+ 0,
+ -1,
+ -2,
+ -3
+ ];
+
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[ i ] ), RangeError, 'throws an error when provided ' + values[ i ] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, new Float64Array( data.A ), value, new Float64Array( data.x ), data.strideX );
+ };
+ }
+});
+
+tape( 'the function throws an error if provided an invalid ninth argument', function test( t ) {
+ var values;
+ var data;
+ var i;
+
+ data = rutu;
+
+ values = [
+ 0
+ ];
+
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[ i ] ), RangeError, 'throws an error when provided ' + values[ i ] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, new Float64Array( data.A ), data.LDA, new Float64Array( data.x ), value );
+ };
+ }
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (row-major, lower, no transpose, non-unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rlntnu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 50.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (column-major, lower, no transpose, non-unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = clntnu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (row-major, lower, transpose, non-unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rltnu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (column-major, lower, transpose, non-unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = cltnu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (row-major, lower, no transpose, unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rlntu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (column-major, lower, no transpose, unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = clntu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (row-major, lower, transpose, unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rltu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (column-major, lower, transpose, unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = cltu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (row-major, upper, no transpose, non-unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = runtnu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (column-major, upper, no transpose, non-unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = cuntnu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (row-major, upper, no transpose, unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = runtu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (column-major, upper, no transpose, unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = cuntu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (row-major, upper, transpose, non-unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rutnu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (column-major, upper, transpose, non-unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = cutnu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (row-major, upper, transpose, unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rutu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (column-major, upper, transpose, unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = cutu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function supports specifying an `x` stride (row-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rxt;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function supports specifying an `x` stride (column-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = cxt;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function returns a reference to the input vector', function test( t ) {
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rutu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if `N` is zero, the function returns the input vector unchanged (row-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rutu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, 0, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ t.deepEqual( x, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if `N` is zero, the function returns the input vector unchanged (column-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = cutu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, 0, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ t.deepEqual( x, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a negative `x` stride (row-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rxn;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function supports a negative `x` stride (column-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = cxn;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.order, data.uplo, data.trans, data.diag, data.N, a, data.LDA, x, data.strideX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/test.js b/lib/node_modules/@stdlib/blas/base/dtrsv/test/test.js
new file mode 100644
index 00000000000..68032cb6452
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/test.js
@@ -0,0 +1,82 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var proxyquire = require( 'proxyquire' );
+var IS_BROWSER = require( '@stdlib/assert/is-browser' );
+var dtrsv = require( './../lib' );
+
+
+// VARIABLES //
+
+var opts = {
+ 'skip': IS_BROWSER
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof dtrsv, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'attached to the main export is a method providing an ndarray interface', function test( t ) {
+ t.strictEqual( typeof dtrsv.ndarray, 'function', 'method is a function' );
+ t.end();
+});
+
+tape( 'if a native implementation is available, the main export is the native implementation', opts, function test( t ) {
+ var dtrsv = proxyquire( './../lib', {
+ '@stdlib/utils/try-require': tryRequire
+ });
+
+ t.strictEqual( dtrsv, mock, 'returns expected value' );
+ t.end();
+
+ function tryRequire() {
+ return mock;
+ }
+
+ function mock() {
+ // Mock...
+ }
+});
+
+tape( 'if a native implementation is not available, the main export is a JavaScript implementation', opts, function test( t ) {
+ var dtrsv;
+ var main;
+
+ main = require( './../lib/dtrsv.js' );
+
+ dtrsv = proxyquire( './../lib', {
+ '@stdlib/utils/try-require': tryRequire
+ });
+
+ t.strictEqual( dtrsv, main, 'returns expected value' );
+ t.end();
+
+ function tryRequire() {
+ return new Error( 'Cannot find module' );
+ }
+});
diff --git a/lib/node_modules/@stdlib/blas/base/dtrsv/test/test.ndarray.js b/lib/node_modules/@stdlib/blas/base/dtrsv/test/test.ndarray.js
new file mode 100644
index 00000000000..da2d3fca2bb
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/base/dtrsv/test/test.ndarray.js
@@ -0,0 +1,966 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable max-len */
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Float64Array = require( '@stdlib/array/float64' );
+var EPS = require( '@stdlib/constants/float64/eps' );
+var abs = require( '@stdlib/math/base/special/abs' );
+var dtrsv = require( './../lib/ndarray.js' );
+
+
+// FIXTURES //
+
+var rlntnu = require( './fixtures/row_major_l_nt_nu.json' );
+var rltnu = require( './fixtures/row_major_l_t_nu.json' );
+var rlntu = require( './fixtures/row_major_l_nt_u.json' );
+var rltu = require( './fixtures/row_major_l_t_u.json' );
+var runtnu = require( './fixtures/row_major_u_nt_nu.json' );
+var runtu = require( './fixtures/row_major_u_nt_u.json' );
+var rutnu = require( './fixtures/row_major_u_t_nu.json' );
+var rutu = require( './fixtures/row_major_u_t_u.json' );
+var rxt = require( './fixtures/row_major_xt.json' );
+var rxn = require( './fixtures/row_major_xn.json' );
+var roa = require( './fixtures/row_major_oa.json' );
+var rsa1sa2 = require( './fixtures/row_major_sa1_sa2.json' );
+var rsa1nsa2 = require( './fixtures/row_major_sa1n_sa2.json' );
+var rsa1sa2n = require( './fixtures/row_major_sa1_sa2n.json' );
+var rsa1nsa2n = require( './fixtures/row_major_sa1n_sa2n.json' );
+var rcap = require( './fixtures/row_major_complex_access_pattern.json' );
+
+var clntnu = require( './fixtures/column_major_l_nt_nu.json' );
+var cltnu = require( './fixtures/column_major_l_t_nu.json' );
+var clntu = require( './fixtures/column_major_l_nt_u.json' );
+var cltu = require( './fixtures/column_major_l_t_u.json' );
+var cuntnu = require( './fixtures/column_major_u_nt_nu.json' );
+var cuntu = require( './fixtures/column_major_u_nt_u.json' );
+var cutnu = require( './fixtures/column_major_u_t_nu.json' );
+var cutu = require( './fixtures/column_major_u_t_u.json' );
+var cxt = require( './fixtures/column_major_xt.json' );
+var cxn = require( './fixtures/column_major_xn.json' );
+var coa = require( './fixtures/column_major_oa.json' );
+var csa1sa2 = require( './fixtures/column_major_sa1_sa2.json' );
+var csa1nsa2 = require( './fixtures/column_major_sa1n_sa2.json' );
+var csa1sa2n = require( './fixtures/column_major_sa1_sa2n.json' );
+var csa1nsa2n = require( './fixtures/column_major_sa1_sa2n.json' );
+var ccap = require( './fixtures/column_major_complex_access_pattern.json' );
+
+
+// FUNCTIONS //
+
+/**
+* Tests for element-wise approximate equality.
+*
+* @private
+* @param {Object} t - test object
+* @param {Collection} actual - actual values
+* @param {Collection} expected - expected values
+* @param {number} rtol - relative tolerance
+*/
+function isApprox( t, actual, expected, rtol ) {
+ var delta;
+ var tol;
+ var i;
+
+ t.strictEqual( actual.length, expected.length, 'returns expected value' );
+ for ( i = 0; i < expected.length; i++ ) {
+ if ( actual[ i ] === expected[ i ] ) {
+ t.strictEqual( actual[ i ], expected[ i ], 'returns expected value' );
+ } else {
+ delta = abs( actual[ i ] - expected[ i ] );
+ tol = rtol * EPS * abs( expected[ i ] );
+ t.ok( delta <= tol, 'within tolerance. actual: '+actual[ i ]+'. expected: '+expected[ i ]+'. delta: '+delta+'. tol: '+tol+'.' );
+ }
+ }
+}
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof dtrsv, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 11', function test( t ) {
+ t.strictEqual( dtrsv.length, 11, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function throws an error if provided an invalid first argument', function test( t ) {
+ var values;
+ var data;
+ var i;
+
+ data = rutu;
+
+ values = [
+ 'foo',
+ 'bar',
+ 'beep',
+ 'boop'
+ ];
+
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ dtrsv( value, data.trans, data.diag, data.N, new Float64Array( data.A ), data.strideA1, data.strideA2, data.offsetA, new Float64Array( data.x ), data.strideX, data.offsetX );
+ };
+ }
+});
+
+tape( 'the function throws an error if provided an invalid second argument', function test( t ) {
+ var values;
+ var data;
+ var i;
+
+ data = rutu;
+
+ values = [
+ 'foo',
+ 'bar',
+ 'beep',
+ 'boop'
+ ];
+
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ dtrsv( data.uplo, value, data.diag, data.N, new Float64Array( data.A ), data.strideA1, data.strideA2, data.offsetA, new Float64Array( data.x ), data.strideX, data.offsetX );
+ };
+ }
+});
+
+tape( 'the function throws an error if provided an invalid third argument', function test( t ) {
+ var values;
+ var data;
+ var i;
+
+ data = rutu;
+
+ values = [
+ 'foo',
+ 'bar',
+ 'beep',
+ 'boop'
+ ];
+
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ dtrsv( data.uplo, data.trans, value, data.N, new Float64Array( data.A ), data.strideA1, data.strideA2, data.offsetA, new Float64Array( data.x ), data.strideX, data.offsetX );
+ };
+ }
+});
+
+tape( 'the function throws an error if provided an invalid fourth argument', function test( t ) {
+ var values;
+ var data;
+ var i;
+
+ data = rutu;
+
+ values = [
+ -1,
+ -2,
+ -3
+ ];
+
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[ i ] ), RangeError, 'throws an error when provided ' + values[ i ] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ dtrsv( data.uplo, data.trans, data.diag, value, new Float64Array( data.A ), data.strideA1, data.strideA2, data.offsetA, new Float64Array( data.x ), data.strideX, data.offsetX );
+ };
+ }
+});
+
+tape( 'the function throws an error if provided an invalid tenth argument', function test( t ) {
+ var values;
+ var data;
+ var i;
+
+ data = rutu;
+
+ values = [
+ 0
+ ];
+
+ for ( i = 0; i < values.length; i++ ) {
+ t.throws( badValue( values[ i ] ), RangeError, 'throws an error when provided ' + values[ i ] );
+ }
+ t.end();
+
+ function badValue( value ) {
+ return function badValue() {
+ dtrsv( data.uplo, data.trans, data.diag, data.N, new Float64Array( data.A ), data.strideA1, data.strideA2, data.offsetA, new Float64Array( data.x ), value, data.offsetX );
+ };
+ }
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (row-major, lower, no transpose, non-unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rlntnu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (column-major, lower, no transpose, non-unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = clntnu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (row-major, lower, transpose, non-unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rltnu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (column-major, lower, transpose, non-unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = cltnu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (row-major, lower, no transpose, unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rlntu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (column-major, lower, no transpose, unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = clntu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (row-major, lower, transpose, unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rltu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (column-major, lower, transpose, unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = cltu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (row-major, upper, no transpose, non-unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = runtnu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (column-major, upper, no transpose, non-unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = cuntnu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (row-major, upper, no transpose, unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = runtu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (column-major, upper, no transpose, unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = cuntu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (row-major, upper, transpose, non-unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rutnu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (column-major, upper, transpose, non-unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = cutnu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (row-major, upper, transpose, unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rutu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function solves one of the systems of equations `A*x = b` or `A^T*x = b` (column-major, upper, transpose, unit)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = cutu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function supports specifying an `x` stride (row-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rxt;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function supports specifying an `x` stride (column-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = cxt;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function returns a reference to the input vector', function test( t ) {
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rutu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if `N` is zero, the function returns the input vector unchanged (row-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rutu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, 0, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ t.deepEqual( x, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if `N` is zero, the function returns the input vector unchanged (column-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = cutu;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, 0, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ t.deepEqual( x, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports specifying the strides of the first and second dimensions of `A` (row-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rsa1sa2;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function supports specifying the strides of the first and second dimensions of `A` (column-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = csa1sa2;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function supports a negative stride for the first dimension of `A` (row-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rsa1nsa2;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function supports a negative stride for the first dimension of `A` (column-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = csa1nsa2;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function supports a negative stride for the second dimension of `A` (row-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rsa1sa2n;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function supports a negative stride for the second dimension of `A` (column-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = csa1sa2n;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function supports negative strides for `A` (row-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rsa1nsa2n;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function supports negative strides for `A` (column-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = csa1nsa2n;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function supports an `A` offset (row-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = roa;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function supports an `A` offset (column-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = coa;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function supports a negative `x` stride (row-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rxn;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function supports a negative `x` stride (column-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = cxn;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function supports complex access patterns (row-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = rcap;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});
+
+tape( 'the function supports complex access patterns (column-major)', function test( t ) {
+ var expected;
+ var data;
+ var out;
+ var a;
+ var x;
+
+ data = ccap;
+
+ a = new Float64Array( data.A );
+ x = new Float64Array( data.x );
+
+ expected = new Float64Array( data.x_out );
+
+ out = dtrsv( data.uplo, data.trans, data.diag, data.N, a, data.strideA1, data.strideA2, data.offsetA, x, data.strideX, data.offsetX );
+ t.strictEqual( out, x, 'returns expected value' );
+ isApprox( t, x, expected, 2.0 );
+
+ t.end();
+});